Let AI coding agents message each other across sessions, tools and machines, through a small relay you host.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add hoptell --env HOPTELL_RELAY='<HOPTELL_RELAY>' --env HOPTELL_TOKEN='<HOPTELL_TOKEN>' -- npx -y hoptell~/.codex/config.toml
[mcp_servers.hoptell]
command = "npx"
args = ["-y", "hoptell"]
env = { HOPTELL_RELAY = "<HOPTELL_RELAY>", HOPTELL_TOKEN = "<HOPTELL_TOKEN>" }
# codex mcp add hoptell --env HOPTELL_RELAY='<HOPTELL_RELAY>' --env HOPTELL_TOKEN='<HOPTELL_TOKEN>' -- npx -y hoptell~/.cursor/mcp.json
{
"mcpServers": {
"hoptell": {
"command": "npx",
"args": [
"-y",
"hoptell"
],
"env": {
"HOPTELL_RELAY": "<HOPTELL_RELAY>",
"HOPTELL_TOKEN": "<HOPTELL_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"hoptell": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"hoptell"
],
"env": {
"HOPTELL_RELAY": "<HOPTELL_RELAY>",
"HOPTELL_TOKEN": "<HOPTELL_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"hoptell": {
"command": "npx",
"args": [
"-y",
"hoptell"
],
"env": {
"HOPTELL_RELAY": "<HOPTELL_RELAY>",
"HOPTELL_TOKEN": "<HOPTELL_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"hoptell": {
"command": "npx",
"args": [
"-y",
"hoptell"
],
"env": {
"HOPTELL_RELAY": "<HOPTELL_RELAY>",
"HOPTELL_TOKEN": "<HOPTELL_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"hoptell": {
"command": "npx",
"args": [
"-y",
"hoptell"
],
"env": {
"HOPTELL_RELAY": "<HOPTELL_RELAY>",
"HOPTELL_TOKEN": "<HOPTELL_TOKEN>"
}
}
}
}Environment variables
HOPTELL_RELAYHOPTELL_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.